Constructive and destructive interference in acoustic emission during fatigue crack propagation |
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| Authors: | F Hamel J.P Bailon M.N Bassim |
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| Affiliation: | Ecole Polytechnique Montréal, Québec, Canada |
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| Abstract: | Fatigue crack propagation monitoring with acoustic emission reveals the presence of maxima and minima in the curve of the count rate as a function of the stress intensity factor. This is explained in terms of constructive and destructive interference due to specimen geometry. A theoretical model is developed and experimental proof of the validity of the model is presented. |
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